rust/tests/mir-opt/pre-codegen/range_iter.range_iter_next.PreCodegen.after.panic-abort.mir
2023-09-01 04:01:54 +08:00

72 lines
1.8 KiB
Rust

// MIR for `range_iter_next` after PreCodegen
fn range_iter_next(_1: &mut std::ops::Range<u32>) -> Option<u32> {
debug it => _1;
let mut _0: std::option::Option<u32>;
scope 1 (inlined iter::range::<impl Iterator for std::ops::Range<u32>>::next) {
debug self => _1;
scope 2 (inlined <std::ops::Range<u32> as iter::range::RangeIteratorImpl>::spec_next) {
debug self => _1;
let mut _4: bool;
let _5: u32;
let mut _6: u32;
let mut _7: &u32;
let mut _8: &u32;
scope 3 {
debug old => _5;
scope 4 {
}
}
scope 5 (inlined cmp::impls::<impl PartialOrd for u32>::lt) {
debug self => _7;
debug other => _8;
let mut _2: u32;
let mut _3: u32;
}
}
}
bb0: {
StorageLive(_5);
StorageLive(_4);
StorageLive(_7);
StorageLive(_8);
StorageLive(_2);
_2 = ((*_1).0: u32);
StorageLive(_3);
_3 = ((*_1).1: u32);
_4 = Lt(move _2, move _3);
StorageDead(_3);
StorageDead(_2);
switchInt(move _4) -> [0: bb1, otherwise: bb2];
}
bb1: {
StorageDead(_8);
StorageDead(_7);
_0 = Option::<u32>::None;
goto -> bb4;
}
bb2: {
StorageDead(_8);
StorageDead(_7);
_5 = ((*_1).0: u32);
StorageLive(_6);
_6 = <u32 as Step>::forward_unchecked(_5, const 1_usize) -> [return: bb3, unwind unreachable];
}
bb3: {
((*_1).0: u32) = move _6;
StorageDead(_6);
_0 = Option::<u32>::Some(_5);
goto -> bb4;
}
bb4: {
StorageDead(_4);
StorageDead(_5);
return;
}
}